Document Type and Number:
Japanese Patent JPS63178888
Kind Code:
U
Application Number:
JP6997987U
Publication Date:
November 18, 1988
Filing Date:
May 11, 1987
Export Citation:
International Classes:
G06F15/02; G09F7/02; G09F9/00; (IPC1-7): G09F9/00; G06F15/02; G09F7/02; G09F9/00
Domestic Patent References:
| JPS6141292B2 | 1986-09-13 |